Do bring the job description. Highlight the things that are well aligned that you want to emphasize. Also note anything that’s concerning or not clear.

Don’t bring or share confidential information from past or current employers even if it provides great examples of what you can do. That makes people super nervous. If you do that to your current employer, you might do it to them too.

Do bring a tissue. Kleenex is fine. An actual cloth handkerchief is better.

Don’t bring strong smells. Go easy on the cologne/aftershave. The smell of clean laundry is ideal. If your interviewer can’t see for the tears because they are allergic to your perfume, you are not making the best impression. (Although, the handkerchief would come in handy here…)